Showing items 1 - 20 of 3792

Mental healthcare users’ perceptions of mental health services at a primary healthcare level

  • Authors: Zwane, Siphelele
  • Date: 2025-04-25
  • Subjects: Mental health services South Africa Makhanda , Primary care (Medicine) , Mental health consumer , Mental health education South Africa , Help-seeking
  • Language: English
  • Type: Academic theses , Master's theses , text
  • Identifier: http://hdl.handle.net/10962/478372 , vital:78181
  • Description: This study interrogates the complexities of mental healthcare in primary healthcare settings, focusing on the experiences and perceptions of participants within the Makana municipality in the Eastern Cape Province, which is characterised by a low socio-economic status. The matter of mental healthcare is of great significance within the context of South Africa, a country grappling with multifaceted challenges. Over the years, mental health has progressed from being marginalised to being more widely acknowledged. While the integration into tertiary and urban healthcare settings has become smoother, primary healthcare has encountered numerous obstacles. This presents a concern, due to the socioeconomic difficulties faced by individuals accessing primary care, which predispose them to mental health issues. Consequently, it is imperative to conduct research focusing on the experiences and perspectives of mental healthcare users within primary healthcare, a relatively underexplored area. The primary objective of the current research study was to contribute to the existing knowledge base, providing valuable insights for relevant stakeholders and policymakers, such as the National Mental Health Policy Framework 2023-2030, to reference when formulating strategies to enhance the integration of mental healthcare into primary healthcare. The study used purposive sampling to interview mental healthcare users within the Makana municipality. Employing a qualitative design facilitated in-depth dialogue between the participants and the researcher, generating valuable data. Thematic Analysis was employed to analyse and present meaningful data, providing an overview of the participants' shared experiences. The study identified four significant themes: the utility of primary health clinic; the urgent need for mental health education; socioeconomics, and mental health, and the complex dynamics of help-seeking behaviours. The findings underscore the pressing need to integrate quality mental health into PHC, emphasising the importance of mental health education, increased resources, task-sharing, and the prioritisation of both physical and mental illnesses. , Thesis (MA) -- Faculty of Humanities, Psychology, 2025
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  • Date Issued: 2025-04-25

The relationship between student satisfaction and online learning interaction at a South African Institution of Higher Learning (IHL)

  • Authors: Zindove, Problem
  • Date: 2025-04-04
  • Subjects: Education, Higher South Africa , Web-based instruction South Africa , E-learning , Interaction analysis in education , Student satisfaction
  • Language: English
  • Type: Academic theses , Master's theses , text
  • Identifier: http://hdl.handle.net/10962/479517 , vital:78320
  • Description: Institutions of Higher Learning (IHLs) are key providers of skilled labour that drive economic growth. Therefore, it is crucial to ensure that students are satisfied with their interaction in the learning environment, including interaction with peers, instructors, and course content. This satisfaction is vital for positive learning outcomes. The COVID-19 pandemic prompted a shift from traditional face-to-face to online learning, significantly affecting student interaction. This research aimed to explore the relationship between online learning interaction and student satisfaction at a selected South African IHL. A comprehensive review of the South African higher education landscape, online learning interaction, and student satisfaction literature was conducted. Based on this review, a hypothesised model was proposed, identifying the independent variable (and its constructs namely, learner-to-learner interaction, learner-to-instructor interaction, and learner-to-content interaction) that may influence the dependent variable- student satisfaction (encompassing both expectations and experience). The research employed a positivistic approach using a deductive reasoning and quantitative methodology. A survey strategy, consisting of self-administered online and paper-based questionnaires, was used to gather data from a convenience sample of students registered at an IHL in South Africa. A total of 268 usable responses were analysed statistically. The validity and reliability of the measurement instrument were confirmed. Descriptive and inferential statistics, including standard deviation, Pearson`s correlation coefficients, regression analysis, and Analysis of Variance (ANOVA) were applied in the data analysis. The results revealed a statistically significant relationship between online learning interaction (independent variable) and student satisfaction (dependent variable), leading to the acceptance of the hypotheses. No modifications were necessary, as the hypothesised model provided a good fit. This research contributes to the body of knowledge on student satisfaction in online learning interaction within South African IHLs. Its use of the Community of Inquiry (CoI) framework has provided a comprehensive perspective of the online learning interaction variable. Also, this research is among the few that juxtaposed student expectations and student experience in student satisfaction discourse. Furthermore, it was found that the constructs of learner-to-learner interaction and learner-to-instructor interaction have an equally strong and statistically significant relationship with student satisfaction, compared to the learner-to-content interaction construct. It also offers practical, methodological recommendations for IHLs to adopt and implement online learning courses effectively. Among others, the adoption of online learning at IHLs should be encouraged as it leads to student satisfaction. Tangent to this is the need for instructor training programmes on online pedagogy. Future research should also consider qualitative research design to get rich insight into Why and How the relationship between online learning interaction and student satisfaction exists. , Thesis (MCom) -- Faculty of Commerce, Management, 2025
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  • Date Issued: 2025-04-04

Bayesian inference for Cronbach's alpha

  • Authors: Izally, Sharkay Ruwade
  • Date: 2025-04-03
  • Subjects: Bayesian inference , Bayesian statistical decision theory , Cronbach's alpha , Confidence distribution , Probability matching , Jeffreys prior , Random effects model
  • Language: English
  • Type: Academic theses , Doctoral theses , text
  • Identifier: http://hdl.handle.net/10962/479919 , vital:78380 , DOI 10.21504/10962/479919
  • Description: Cronbach’s alpha is used as a measure of reliability in fields like education, psychology and sociology. The reason for the popularity of Cronbach’s alpha is that it is computationally simple. Only the sample size and the variance components are needed and it can be computed for continuous as well as binary data. Cronbach’s alpha has been studied extensively using maximum likelihood estimation. Since Cronbach’s alpha is a function of the variance components, this often results in negative estimates of the variance components when the maximum likelihood method is considered as a method of estimation. In the field of Bayesian statistics, the parameters are random variables, and this can alleviate some of the problems of estimating negative variance estimates that often occur when the frequentist approach is used. The Bayesian approach also incorporates loss functions that considers the symmetry of the distribution of the parameters being estimated and adds some flexibility in obtaining better estimates of the unknown parameters. The Bayesian approach often results in better coverage probabilities than the frequentist approach especially for smaller sample sizes and it is therefore important to consider a Bayesian analysis in the estimation of Cronbach’s alpha. The reference and probability matching priors for Cronbach’s alpha will be derived using a one-way random effects model. The performance of these two priors will be compared to that of the well-known Jeffreys prior and a divergence prior. A simulation study will be considered to compare the performance of the priors, where the coverage rates, average interval lengths and standard deviations of the interval lengths will be computed. A second simulation study will be considered where the mean relative error will be compared for the various priors using the squared error, the absolute error and the linear in exponential (LINEX) loss functions. An illustrative example will also be considered. The combined Bayesian estimation of more than one Cronbach’s alpha will also be considered for m experiments with equal α but possibly different variance components. It will be shown that the reference and the probability-matching priors are the same. The Bayesian theory and results will be applied to two examples. The intervals for the combined model are however much shorter than those of the individual models. Also, the point estimates of the combined model are more accurate than those of the individual models. It is further concluded that the posterior distribution of α for the combined model becomes more important as the number of samples and models increase. The reference and probability matching priors for Cronbach’s alpha will be derived using a three-component hierarchical model. The performance of these two priors will be compared to that of the well-known Jeffreys prior and a divergence prior. A simulation study will be v vi considered to compare the performance of the priors, where the coverage rates, average interval lengths and standard deviations of the interval lengths will be computed. Two illustrative examples will also be considered. Statistical control limits will be obtained for Cronbach’s alpha in the case of a balanced one-way random effects model. This will be achieved by deriving the predictive distribution of a future Cronbach’s alpha. The unconditional posterior predictive distribution will be determined using Monte Carlo simulation and the Rao-Blackwell procedure. The predictive distribution will be used to obtain control limits and to determine the run-length and average run-length. Cronbach’s alpha will be estimated for a general covariance matrix using a Bayesian approach and comparing these results to the asymptotic frequentist interval valid under a general covariance matrix framework. Most of the results used in the literature require the compound symmetry assumption for analyses of Cronbach’s alpha. Fiducial and posterior distributions will be derived for Cronbach’s alpha in the case of the bivariate normal distribution. Various objective priors will be considered for the variance components and the correlation coefficient. One of the priors considered corresponds to the fiducial distribution. The performance of these priors will be compared to an asymptotic frequentist interval often used in the literature. A simulation study will be considered to compare the performance of the priors and the asymptotic interval, where the coverage rates and average interval lengths will be computed. , Thesis (PhD) -- Faculty of Science, Statistics, 2025
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  • Date Issued: 2025-04-03

Bushmeat hunting and use by rural communities living adjacent to indigenous forests in the Eastern Cape

  • Authors: Martins, Vusumzi
  • Date: 2025-04-03
  • Subjects: Wildlife as food South Africa Eastern Cape , Forests and forestry South Africa , Hunting South Africa , Local ecological knowledge , Forest management South Africa , Sustainability , Social ecology
  • Language: English
  • Type: Academic theses , Doctoral theses , text
  • Identifier: http://hdl.handle.net/10962/479930 , vital:78381 , DOI 10.21504/10962/479930
  • Description: The use of forest wild species directly contributes to the well-being of billions of people globally and is particularly important to people living in vulnerable situations. Rural, indigenous communities have harvested a variety of timber and non-timber forest products (NTFPs) for millennia and still do to date. For these people, forests provide many products and benefits such as food, medicine, fuelwood and a source of income from trade in these items. In South Africa, a large number of studies have investigated the harvesting and use of NTFPs, highlighting their importance to rural and urban communities. Additionaly, the hunting of wild mammals occurs throughout the Afro-temperate forests of South Africa. Yet, no comprehensive study has been conducted on the hunting and use of wild forest mammals in the region. I sought to investigate the motivations, extent and impact of local hunting in the indigenous forests of the Eastern Cape. I hypothesize that in the region hunting is not a primary source of nutrition or income, but it continues to hold cultural significance, reflecting deep-rooted traditions within these communities. Understanding bushmeat hunting and use in the region is key to guiding sustainable management and assessing the need for policy adjustments. The current study firstly provides a detailed evaluation of NTFPs harvesting and use, highlighting the livelihood benefits associated with bushmeat hunting by investigating bushmeat hunting patterns and consumption by rural communities surrounding forest patches in the Eastern Cape province, South Africa. Here bushmeat hunting refers to the informal hunting of wild mammals by rural communities, primarily for subsistence consumption. While often organised and small-scale, it is shaped by local ecological knowledge, cultural traditions, and resource availability. The practice occurs within a complex illegal and socio-economic landscape, where access to alternative protein sources, conservation regulations, and historical land-use patterns influence its prevalence and significance. To assess NTFP harvesting and bushmeat hunting, 12 villages at different proximities to forests were selected around the province. Using a quantitative approach in the form of guided, semi-structured interviews, data on the extraction and use of NTFPs, bushmeat hunting, frequency of bushmeat consumption, general protein consumption and food security of each household were solicited. Only 16% of the households attested to hunting in the 12 months prior to the survey, with all these households including an active hunter. Though 64% of the interviewed head of households mentioned that they had consumed bushmeat in the past year, these were mostly men, only 12% percent mentioned that the hunter in the household brought their catch home and consumed the meat with their families. Hunters mostly consumed their catch with other hunters, non-hunting males and young boys. Hence the study concluded that bushmeat consumption was not an important livelihood strategy nor food source of rural people but instead plays a significant social and cultural role in the region. I also provide comprehensive insights into bushmeat hunting practices in the province. Though conducting in-depth questionnaire surveys with self-identifying hunters from the 12 villages I was able to determine the motivations, methods and perceptions behind bushmeat hunting. A total of 147 hunter interviews were conducted. All the interviewees were male, with a mean age of 32 ± 9 years. The primary motivations behind bushmeat hunting were culture (40%), sport/competition (33%) and recreational purposes (20%). Contrary to hunting in the tropics, only 4% mentioned that they hunt for income. Most of the hunters (44%) used mixed hunting methods. This involved setting up or checking snares whilst hunting with dogs and sticks, 27% only used dogs and sticks and 17% only used snares. Hunters reported ten mammal species caught in forests of the Eastern Cape in the last 12 months. Bushbuck (Tragelaphus scriptus), Common duiker (Sylvicapra grimmia) and Cape porcupine (Hystrix africaeaustralis) were the most hunted species. All the hunters acknowledged that hunting was an illegal activity and if caught they could be arrested. The study further presents a thorough assessment of forest mammal species diversity under hunting pressure. Evidence suggests that higher hunting occurs in communal land forests compared to forests on protected or privately owned land. Hence, data on species richness and abundance within fenced protected forests and neighbouring unfenced communal forests was acquired using a mixed-methods approach in the form of ecological line transects and local ecological knowledge (LEK) surveys. The line transects revealed a mean mammal species richness of 7.6 ±1.3 in the protected forests, 5.3 ±1.4 in the Afromontane communal forests and 3.3 ±1.6 in the Coastal communal forests. The Afromontane and Coastal communal forests had a mean species abundance of 12.1 ± 5.4 and 6.5 ± 5.0, per forest respectively, whilst the protected forests had a mean species abundance of 18.0 ± 7.0. During the LEK surveys hunters from villages close to the forests reported more species (8.9 ±1.7) than those from far villages (7.3 ± 1.2). The regular forest users reported a mean species richness of 5.5 ± 1.2 and the local experts from the protected forests reporting a mean species richness of 13.4 ± 0.7. The study demonstrates the importance of mixed-methods approach in wildlife research and sustainable natural resource use. The current study clearly shows that protected areas support higher biodiversity and that local forest users’ knowledge aligns well with ecological data. Lastly, I present a social-ecological assessment of bushmeat hunting in the forests of the Eastern Cape. The use of traditional biological sustainability indices have proved inadequate for measuring the impact of bushmeat hunting because sustainability is treated as a static, binary question, thus ignoring stochastic processes, the inherent variability of natural systems, and the complexity of hunting systems. I hence used a combination of social and ecological methods to gain insights on how the offtake of forest mammal species affected species density in the communal forests of the Eastern Cape and also how this influenced hunting practices and behaviour. The density estimates of the hunted mammal fauna in the communal forests was significantly less (50%) than in the protected forests in the region. Also, the density estimates for the five most hunted mammal species in the communal forests were significantly lower (15%) than density estimates reported in the literature. Additionally, participatory hunter interviews revealed a decline in catch per unit effort and harvest rates over the past 10 years. This decline resulted in changes in the hunting strategies and patterns of many hunters. I argue that bushmeat hunting systems should be regarded as social-ecological systems in which the animal populations are not the only focus. Instead, understanding the complex and dynamic relationships between the hunting ground, its resources, the stakeholders, and the different exogenous drivers of change that affect these components yields a better interpretation of sustainability. The current study contributes to the growing knowledge of bushmeat hunting and use in the country and also provides novel findings on the sustainability of bushmeat hunting in the forests of the Eastern Cape. Here I provide an all-inclusive appraisal of bushmeat hunting and use by rural communities living adjacent to biodiversity-rich indigenous forests. The study provides in-depth insights on household bushmeat use, hunting practices and motivations of hunters and the effect of hunting on mammalian forest fauna. Furthermore, the study provides a novel approach to determining the sustainability of bushmeat hunting by using mixed social and ecological methods. The study can be used as a model for other studies assessing bushmeat hunting elsewhere in the country. , Thesis (PhD) -- Faculty of Science, Environmental Science, 2025
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  • Date Issued: 2025-04-03

Creating access to powerful knowledge in accounting education: a case study of pedagogies used in an accountancy diploma

  • Authors: West, Janét
  • Date: 2025-04-03
  • Subjects: Accounting Study and teaching South Africa , Educational change , Knowledge, Theory of , Critical thinking , Semantics
  • Language: English
  • Type: Academic theses , Doctoral theses , text
  • Identifier: http://hdl.handle.net/10962/480062 , vital:78393 , DOI 10.21504/10962/480062
  • Description: Students enter universities to obtain a qualification that they believe will enhance their chances of employment and thereby a better future. But the World Economic Forum states that the world of work is changing so fast that 75% of companies are not prepared for the pace at which their industries are changing. The field of accounting, and accounting education in particular, is facing significant challenges as accountants change from being ‘number crunchers’ to engaging business partners. There is also a decrease in the demand for accountants, at the same time as increasing complaints that accounting graduates are unprepared for their work. These contextual challenges raise the question of ‘What can higher education institutions do to prepare students for a future of rapid change and uncertainty, specifically within the field of accounting?’ This study argues that epistemological access to powerful knowledge is essential for creating lifelong learners that can adapt to change. The study draws on Legitimation Code Theory (LCT) to visualise the powerful knowledge that students require access to in two thirdyear modules within a Diploma of Accounting. This is followed by an analysis of the pedagogies used in the two modules and how access to powerful knowledge is enabled (or hindered) through the pedagogical practices. Data include lecturer observations, course documents and interviews. The study found that there are significant differences between the knowledge structures of the modules, despite them being part of the same discipline. Furthermore, through the analysis I was able to identify key patterns in the pedagogies that enable access to powerful knowledge as well as pedagogical approaches that may constrain access to powerful knowledge. The findings of this study can help accounting lecturers as well as lecturers in similar disciplines to consider how their pedagogical practices enable epistemological access to the target powerful knowledge of their discipline. , Thesis (PhD) -- Faculty of Education, Centre for Higher Education Research, Teaching and Learning, 2025
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  • Date Issued: 2025-04-03

Exploring Foundation Phase pre-service teachers’ mathematical pedagogical content knowledge for teaching additive mental mathematics strategies

  • Authors: Kumm, Marisa Luisa
  • Date: 2025-04-03
  • Subjects: Pedagogical content knowledge , Mathematics Study and teaching (Primary) South Africa , Pre-service teacher education , Student teachers South Africa , Addition Study and teaching (Elementary) , Number concept Study and teaching (Elementary)
  • Language: English
  • Type: Academic theses , Master's theses , text
  • Identifier: http://hdl.handle.net/10962/480018 , vital:78389
  • Description: Poor learner performance in mathematics remains a concern in South African primary and secondary education according to continuous national and international assessments. Many learners fall behind in the early grades without being provided the opportunity to establish a solid foundational number sense. This is an essential requirement to progress into the higher grades. Addressing the challenges of number sense in the Foundation Phase is mandatory. This study aimed to investigate third-year Foundation Phase pre-service teachers’ content knowledge and pedagogical content knowledge of their additive reasoning strategies (a key aspect of number sense) at a private teacher education institution, guided by the question: What content knowledge and pedagogical content knowledge do third-year Foundation Phase pre-service teachers have of additive reasoning mental mathematics strategies? Several researchers have identified the need to develop pre-service teachers’ mathematical content knowledge and pedagogical content knowledge. This study was guided by Shulman’s (1986) constructs of teacher knowledge. This qualitative, descriptive study, which formed part of the Mental Mathematics – Work Integrated Learning (MM-WIL) programme, collected data from an interpretivist perspective. The information for this study was gathered from participants who agreed to be part of the study. The study collected data through pre- and post-intervention questionnaires that had two parts. The first part assessed pre-service teachers’ methods of solving four basic additive reasoning calculations (that lent themselves to using the strategies of bridging through ten, jump strategy, and rounding and adjusting). The second part of the questionnaire asked pre-service teachers to describe these strategies and how they would teach them, with the aim of understanding their additive reasoning skills and ability to use and teach these mental strategies. Key findings are that many pre-service teachers do not have the content knowledge to solve basic calculations using efficient methods. These are skills that they are required to teach in the Foundation Phase classroom. The findings in this study highlight the urgent need to address the weak content knowledge, pedagogical content knowledge and inefficient unit based counting methods of many pre-service teachers to improve learners’ development and fundamental understanding of numbers that allows for flexible and efficient calculation. , Thesis (MEd) -- Faculty of Education, Primary and Early Childhood Education, 2025
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  • Date Issued: 2025-04-03

Exploring organisational learning in water resource protection: activity system analysis of social learning among resource directed measures role-players in South Africa

  • Authors: Thwala, Mmaphefo Doreen
  • Date: 2025-04-03
  • Subjects: Social learning , Organizational learning , Soft systems methodology , Water-supply Management , Cultural-historical activity theory
  • Language: English
  • Type: Academic theses , Doctoral theses , text
  • Identifier: http://hdl.handle.net/10962/480117 , vital:78398 , DOI 10.21504/10962/480117
  • Description: Globally, there are policy and practice efforts to mainstream inclusive education in different sub-fields of education. Part of the efforts have focused on investigating and finding practical mechanisms for the mainstreaming process in teacher education. Anecdotally, Education for Sustainable Development (ESD), with its focus on transformative education, collaborative learning, the community of practice and the whole institution approach, has the potential to mainstream inclusive education in teacher education practices if grounded in sociocultural realities rather than mere ideological framing. This situation is related to the need for more transformative capabilities for teacher educators to prepare teachers for inclusive pedagogical proficiency. However, in a southern African context, the outlook of the potential of pedagogical proficiency from the nexus of inclusive education, ESD and teacher education is disjointed. As such, this study focused on investigating the mainstreaming of inclusive education in teacher education practice for pedagogical proficiency through ESD Change Projects in Southern Africa, examining cases from Malawi, Tanzania and Eswatini. The study intended to gain an understanding of inclusive education and ESD in these countries, identify areas for strengthening inclusive education in teacher education practice, collaborate with teacher educators to develop strategies for mainstreaming inclusive education, and generate indicators for monitoring and evaluating inclusive education in teacher education contexts. The study used Urie Bronfenbrenner’s bioecological theory of human development and Lev Vygotsky’s sociocultural theory of learning as theoretical and analytical frameworks. The study also employed Roy Bhaskar’s critical realism philosophy as an underlabourer or a meta-theoretical framework. The study further adapted the Vygotsky-informed Engestrom’s expansive learning as a methodological torch. Together, these frameworks were used to analyse selected Change Projects within Sustainability Starts with Teachers (SST) programme, which focused on ESD capacity building in teacher educators from 11 southern African countries. In this regard, the research utilised a qualitative nested case study design. A formative interventionist research approach supported the cases in Malawi, Tanzania and Eswatini, with the study selecting SST Change Projects dealing with inclusive education through an initial scoping questionnaire. Data were generated through 12 in-depth interviews, nine workshops (involving 24 participants), document reviews, observations and reflective journals. Thematic ii analysis, employing a critical realist approach with abductive and retroductive reasoning, guided the reflexive presentation and discussion of research findings. The research findings revealed a common understanding of inclusive education as providing equal educational opportunities, ESD as supporting sustainable development, and teacher education as skill development. The research findings also highlighted the influence of teacher educators’ biopsychosocial characteristics on their perceptions of inclusive education, ESD and teacher education. Areas requiring improvement in teacher education systems included resources, attitude change, financing, cooperation, collaboration and leadership. Strategies for mainstreaming inclusive education in teacher education practice for pedagogical proficiency included curriculum implementation, policy shift, contextualisation and interactive systems. Monitoring and evaluation in all three cases focused on teaching practice, assessment, feedback tools, forums and curriculum implementation, but the absence of specific indicators for monitoring and evaluation was evident. These findings suggest multi-layered and complex implications for policy formulation, implementation practices and future research. Therefore, this thesis argues that, in a southern Africa context, the potential of pedagogical proficiency from the nexus of inclusive education, ESD and teacher education involves considering biopsychosocial characteristics to facilitate the capabilities of teacher educators. This situation necessitates utilising inclusivity mechanisms in pre-service teacher training grounded in biosocial and psychocultural realities of the region’s educational challenges. Consequently, this thesis proffers the Sustainable Inclusive Pedagogical Proficiency Process (SIP3) model as a framework to actualise the nexus of inclusive education, ESD and teacher education, and bring into focus its pedagogical proficiency potential which eventually helps with the mainstreaming process in teacher education practice via ESD. The study reported in this thesis contributes to international theory and practice development for inclusivity and ESD in teacher education practice, provides indicators for monitoring inclusive quality education in teacher education practice, and introduces a contextual dynamics model for comparative education research. The thesis is structured in eight chapters, introducing the study context, addressing literature gaps, presenting the theoretical framework, detailing research design, exploring specific cases in Malawi, Tanzania and Eswatini, discussing the research findings and its implications, and concluding with recommendations for change and future research. , Thesis (PhD) -- Faculty of Education, Secondary and Post School Education, 2025
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  • Date Issued: 2025-04-03

Investigating the basis of legitimation of English literary studies: a case study of a curriculum at a South African University

  • Authors: Knoetze, Retha
  • Date: 2025-04-03
  • Subjects: Knowledge, Theory of , Critical thinking , English literature Study and teaching (Higher) South Africa , Neoliberalism South Africa , Critical literacy , Transformative learning
  • Language: English
  • Type: Academic theses , Doctoral theses , text
  • Identifier: http://hdl.handle.net/10962/480050 , vital:78392 , DOI 10.21504/10962/480050
  • Description: This study explored the kinds of knowledge, ways of knowing and ways of being that are valued in English literary studies. It did so by providing an analysis of what was needed to succeed in a specific English literary studies curriculum. The study used the Specialisation dimension of Legitimation Code Theory (LCT) to investigate what is legitimated in an English literature curriculum at the University of South Africa (UNISA) across three years of undergraduate study. The purpose of this analysis was twofold. Firstly, it aimed to make the academic literacy practices of English literary studies more explicit in order to inform pedagogy intended to enable epistemological and ontological access to the discipline. Secondly, the study aimed to facilitate critiques of the curriculum from a social justice perspective by finding ways to make the basis for legitimacy (the ways of being and knowing that are valued) in the curriculum more explicit to both the academics and the students. The study found that English literary studies, as practised at UNISA, was underpinned by what LCT refers to as a ‘cultivated gaze’. This aligns with the findings of previous LCT studies that looked at English literary studies using the dimension of Specialisation. A discipline that is underpinned by a cultivated gaze requires students to exhibit a specific disposition that develops through immersion in the field over an extended period in order to be considered a legitimate knower. The study also found that two orientations within the cultivated gaze were legitimated in the curriculum: an aesthetic orientation and a socio-critical orientation. This finding adds to the previous research because it helps us to better understand the kinds of dispositions that are valued in English literary studies and how these dispositions are cultivated over time. In addition, the study found that neoliberal factors such as massification, managerialism and academic casualisation caused misalignments between the intended curriculum and the practices employed to teach and assess the curriculum. This placed particular limitations on one of the aims of the curriculum which was to cultivate a socially oriented criticality. This finding has implications for how we teach Humanities curricula that aim to develop critical citizens. , Thesis (PhD) -- Faculty of Education, Centre for Higher Education Research, Teaching and Learning, 2025
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  • Date Issued: 2025-04-03

Managing operational uncertainty in manufacturing with industry 4.0 and 5.0 technologies: a modified neo-configurational perspective

  • Authors: Mtotywa, Matolwandile Mzuvukile
  • Date: 2025-04-02
  • Subjects: Industry 4.0 , Industry 5.0 , Operational risk , Organizational learning , Qualitative comparative analysis , Configurational analysis
  • Language: English
  • Type: Academic theses , Doctoral theses , text
  • Identifier: http://hdl.handle.net/10962/479584 , vital:78326 , DOI 10.21504/10962/479584
  • Description: The manufacturing sector is a significant economic multiplier due to its strong connections to the economy's downstream and upstream output sectors. It supports the notion that manufacturing drives industrialisation and can serve as the primary engine for growth and employment creation. Despite its importance, the manufacturing sector has challenges associated with diminishing size and lack of competitiveness, especially in countries such as South Africa. These challenges are exacerbated by prevailing operational uncertainties that negatively impact manufacturing firms. Literature on operational uncertainty, fourth and fifth industrial revolution technologies and organisational learning show several interrelated theoretical and methodological gaps, highlighting three empirical and theoretical gaps as well as two methodological gaps. Six propositions were developed to investigate the research objectives. This was done using a multi-method quantitative design based on the post-positivist paradigm, with data collected from 22 experts (expert survey) and 262 firm representatives (firm survey). The results of the study confirmed that operational uncertainty is a multi-dimensional construct with a reflective model for dimensions and reflective-reflective for higher-order construct. This means that for the dimensions, the indicators can be added or excluded in the formation of the dimension. The same is also true for construct, operational uncertainty. The results of the present study also confirm that operational uncertainty is a norm in the manufacturing industry with a Manufacturing Operational Uncertainty Index (MOUI) = 0.752, indicating the range of futures. This posits that it is difficult to divide these futures into a discrete and exhaustive set of possibilities due to the complexity of conditions (variables) at play. Industry 4.0 and 5.0 technologies and their capabilities can manage the operational uncertainty dimensions with these technologies capable of scenario planning and supply chain integration (SPSI), flexible production and mass customisation (FPMC), real-time system and process monitoring and response (RPMR), root cause analysis and sustainable solutions (RCAS). These technologies are mainly artificial intelligence (AI), Internet of Things (IoT), big data analytics (BDA) and to a less extent advanced robotics (ARB), blockchain and augmented and virtual reality (ARVR). Organisation learning is also an effective causal condition to incorporate in managing operational uncertainty with Industry 4.0 and 5.0 technologies. The study has both theoretical and methodological contributions. In theory, it advanced the modified neo-configuration theory, while the methodology provided an Manufacturing Operational Uncertainty Index and integrated fsQCA with fuzzy decision-making trial and evaluation laboratory (DEMATEL), and structural equation modelling partial least square (PLS-SEM). This research study is important since the recognition and dissemination of subjects within the field of operations management hold great significance for firms, which is contingent upon their sector of operation. This research offers valuable insights for academia, policymakers, and the manufacturing sector. It helps with their activities to effect meaningful change in day-to-day business operations, allowing for more effective progress in the subject area, and promoting practical, real-world issue-solving. , Thesis (PhD) -- Faculty of Commerce, Rhodes Business School, 2025
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  • Date Issued: 2025-04-02

Pre-release evaluation of stem-galling and seed-feeding midges (Diptera: Cecidomyiidae) from South Africa as biological control agents for Guinea grass (Megathyrsus maximus) in Texas, United States

  • Authors: De la Fontaine, Benjamin
  • Date: 2025-04-02
  • Subjects: Guinea grass Biological control Texas , Gall midges , Invasive plants Biological control Texas , Maxent , Phylogeny , Grasses Texas
  • Language: English
  • Type: Academic theses , Master's theses , text
  • Identifier: http://hdl.handle.net/10962/479002 , vital:78248
  • Description: Guinea grass (Megathyrsus maximus) is a tall-statured C4 grass with a native range spanning sub-Saharan Africa. Intentionally exported for centuries for its grazing value, it has become a near-global invasive. Texas, USA is the first territory to initiate a biological control program for Guinea grass, targeting an invasive population with genetic origins that have been traced to South Africa. This study focuses on the identification and evaluation of biological control agents for Guinea grass. Native-range natural enemy surveys were performed in South Africa, resulting in the identification of several undescribed species of phytophagous midges (Diptera: Cecidomyiidae) on Guinea grass, including stem-galling taxa (gall midges) and seed-feeding taxa (seed midges). These taxa are expected to be highly host-specific based on the known biology of this family of insects, but the difficulty of rearing them in the laboratory necessitated field-based assessments. Field host range assessments of stem gall midges resulted in the rejection of one candidate (the horn gall midge, undescribed sp.) due to feeding on a relative of the target plant, Batochloa deusta, and the prioritization of another candidate (the blister gall midge, Arabukodiplosis vesicaria) that feeds only on Megathyrsus maximus. Combined field host range evaluations and phylogenetic analysis of a cryptic species complex of seed midges resolved this as a new genus containing up to seven species, with five species that are likely to be specific to their respective Panicoideae grass hosts, including Megathyrsus maximus and Cenchrus ciliaris (buffelgrass – also invasive in the USA). Climate matching models for the blister gall midge and seed midge on Guinea grass predicted high likelihood of establishment and nearly complete coverage of invaded sites in Texas, and identified northern KwaZulu-Natal, South Africa as an ideal source region for Guinea grass biocontrol agents. The nascent sub-field of grass biocontrol research has developed slowly because of inaccurate perceptions that grasses lack host-specific herbivores, and faces a severe taxonomic impediment given the large number of undescribed insect species feeding on grasses, especially in Africa. This study has contributed to resolving both challenges by identifying several new host-specific insect species, showing that the prospects for future success and discovery in grass biological control are promising. , Thesis (MSc) -- Faculty of Science, Zoology and Entomology, 2025
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  • Date Issued: 2025-04-02

Stamping ground: investigating the walkability of Rhodes University students in Makhanda, South Africa

  • Authors: Padayachee, Huresha
  • Date: 2025-04-02
  • Subjects: Walkability , Rhodes University , Campus size South Africa Makhanda , Small cities South Africa Makhanda , College students Social conditions
  • Language: English
  • Type: Academic theses , Master's theses , text
  • Identifier: http://hdl.handle.net/10962/479197 , vital:78269
  • Description: Walkability is an important research topic in the Global South where many people in urban settlements walk because of transport poverty. University students are a subset of the urban population in Makhanda who experience transport poverty and largely rely on walking to navigate the city. The purpose of this study is to measure and spatially analyse walkability and walking patterns in the student community of Makhanda, South Africa. This study has a specific focus on students who reside in the Rhodes University campus, Central Business District (Central), Sunnyside, and Westhill. These specific areas were chosen because, in terms of student residents, these are the most densely populated residential areas in the city, but are also the epicentre of student activity. This research intends to explore the existing walkability within these four study sites through a visual survey using common measures of walkability, digital mapping as well as student perceptions of walkability. The quantitative data collected through visual surveys, digital mapping and participatory mapping will be spatially analysed using GIS (Geographic Information Systems). Results show that walking is the main mode of transportation and students do not have affordable alternatives to walking. The Rhodes University campus is the most walkable area with Central being the second, Westhill being the third, and Sunnyside being the least walkable area. Sidewalk conditions (sidewalk presence, evenness and maintenance) and pedestrian safety and security (pedestrian crossings, crime, security features, lighting, the presence of people, and pedestrian visibility) were rated as the most important walkability factors. Additionally, the more walkable roads are mainly found within the Rhodes University campus and Sunnyside while the less walkable roads are mainly found within Central. Furthermore, the epicentre of student activity is focused on the Rhodes University campus during the week and as the week progresses, the epicentre shifts along with a shift in activity. The Rhodes University campus and Central are where students spent most of their time because the main amenities that student use are found within these areas. This research offers insights into walkability that can be directly applied to urban planning and policy-making. Planners should focus their resources on improving walkability, particularly in sidewalk conditions and pedestrian safety and security. By applying the findings of this research, planners can create more conducive, safer, and comfortable walking environments. , Thesis (MSc) -- Faculty of Science, Geography, 2025
  • Full Text:
  • Date Issued: 2025-04-02

Statistical analysis of travelling ionospheric disturbances during geomagnetic storms

  • Authors: Mothibi, Matsobane Alex
  • Date: 2025-04-02
  • Subjects: Sudden ionospheric disturbances , Geomagnetic storm , Solar flares , Global Positioning System , Gravity waves
  • Language: English
  • Type: Academic theses , Master's theses , text
  • Identifier: http://hdl.handle.net/10962/479138 , vital:78264
  • Description: This thesis presents observations of medium to large-scale traveling ionospheric disturbances (TIDs) originating from high latitudes, and propagating towards the equator and TIDs originating from the equator with a poleward propagation in the African-European sector during geomagnetically disturbed conditions between 2006 and 2022. 196 TID activities propagating over the African-European sector were observed, of these TID activities, 161 and 33 were observed during geomagnetic storms, and simultaneous occurrence of geomagnetic storms and solar flares, respectively. Total electron content perturbations derived from Global Navigation Satellite Systems (GNSS) observations within a latitude range of 40°S–60°N and longitude ranges of 20°-40°E representing the African-European sector were analysed based on the storm criteria of Dst ≤ -30 nT. The GNSS total electron content (TEC) data were used to obtain the two dimensional (2d) TEC perturbations. The northern hemispheric part of the African sector has limited data coverage which is visualized by a gap around 20°, where there were no data coverage can be observed in the 2d TEC maps. An important result is that large-scale TIDs (LSTIDs) and medium-scale TIDs (MSTIDs) were found to occur predominantly during the main and recovery phases of geomagnetic storms respectively, at least over the African-European sector. During the main phase of storms equatorward LSTID activity was relatively consistent across both hemispheres, with years of solar maximum, between 2013 and 2015, showing higher frequencies of events. Equatorward MSTID activity appeared less frequent overall, particularly in the southern hemisphere (SH), suggesting that equatorward LSTID activity are more prominent during the main phase of geomagnetic storms. Poleward TID activity were more predominant in the recovery phase than the main phase of geomagnetic storms. , Thesis (MSc) -- Faculty of Science, Physics and Electronics, 2025
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  • Date Issued: 2025-04-02

A model to facilitate nursing research supervisors in assisting postgraduate nursing students in Gauteng Province with timeous completion of studies

  • Authors: Mbombi, Masenyani Oupa
  • Date: 2024-12
  • Subjects: College dropouts -- Gauteng -- South Africa , Nursing -- Study and teaching -- Gauteng -- South Africa , Nursing -- Research
  • Language: English
  • Type: Doctoral theses , text
  • Identifier: http://hdl.handle.net/10948/69727 , vital:78014
  • Description: Many academically orientated persons aspire towards having postgraduate qualifications for various reasons. The reasons range from career development to expanding their knowledge in fields related to their current areas of professional specialisation. Some people however do not fulfil that personal need due to academic exclusion from their studies in the university related to taking too long to finish their studies while others just drop out. The current study aimed to develop a model that would assist in facilitating the supervision of postgraduate nursing students to complete their studies in the required and allocated time at nursing education institutions in Gauteng. The objectives of the study were to: explore and describe the perceptions of postgraduate research nursingstudents regarding their preparedness for a joint research journey; explore and describe the perceptions of research supervisors regarding theirpreparedness for a joint research journey; develop a conceptual framework that would underpin the development of amodel to facilitate the preparedness of postgraduate research nursing students(PGRNSs) and supervisors for the research journey at NEIs in Gauteng; and develop and describe a model to facilitate the preparedness of postgraduateresearch nursing students (PGRNSs) and inexperienced research supervisorsfor a joint research journey at NEIs at Gauteng. A theory-generative research design based on a qualitative, explorative, descriptive, and contextual research approach was adopted in this study. Purposive sampling was used to select 16 postgraduate nursing students (8 master’s and 8 doctoral) and 12 research supervisors from universities in Gauteng, South Africa. Data collection was conducted through voice-recorded unstructured interviews, which were transcribed verbatim and analysed using Tesch’s open coding method of data analysis. To ensure the trustworthiness of the study, the researcher used various strategies based on the criteria recommended in Guba’s model of trustworthiness. The criteria were credibility, transferability, confirmability and dependability. Ethical principles, such as respect for a person’s beneficence, non-maleficence, and justice were ensured during the data collection stage. Four broad themes (see Chapter 3) emerged from the data analysis. The themes were: Theme: perceptions regarding postgraduate supervision provided or received Theme: perceptions regarding preparedness for the research journey Theme: support systems influencing preparedness for the research journey Theme: Hope for change in the research progress and concerns to be considered Concept identification and analysis assisted the researcher in putting concepts in a relationship for the development of the model as guided by the six survey elements of Dickoff and James. Although the model was not tested, the researcher and the selected nursing experts were confident that the model is significant to nursing and other disciplines. The model was described and successfully evaluated by a panel of six nursing experts who acknowledged the clarity, generality, accessibility, simplicity, and significant contribution to the nursing environment. The guidelines and recommendations to implement the model in the nursing environment were developed to enhance the application of the model. The model aims to provide a theoretical and structural frame of reference to the head of the department and research supervisors in nursing for the facilitation of the preparedness of the postgraduate students and inexperienced supervisors for a joint research journey to ensure the timeous completion of postgraduate studies. The outcomes of the model include easing the struggle of students during their research studies for acceptable progress within the nursing environment of nursing education institutions. inexperienced research supervisors who experienced challenges to achieving optimum supervision in the nursing environment will also benefit if they apply the developed model. To enhance the applicability of the model, the researcher recommends that the model be tested in postgraduate studies for future benefits before implementation. , Thesis (PhD) -- Faculty of Health Sciences, School of Clinical Care & Medicinal Sciences, 2024
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  • Date Issued: 2024-12

A relevant intervention on nutrition transition among Isixhosa speaking people in Nelson Mandela Bay

  • Authors: Fordjour Afriyie, Vera
  • Date: 2024-12
  • Subjects: Nutrition -- South Africa -- Port Elizabeth , Nutrition -- Social aspects , Xhosa (African people) -- Nutrition
  • Language: English
  • Type: Doctoral theses , text
  • Identifier: http://hdl.handle.net/10948/69760 , vital:78026
  • Description: The nutrition transition, characterised by a shift from traditional, nutrient-dense diets to Westernised, energy-dense, and nutrient-poor diets, has significant health implications globally. In South Africa (SA), particularly among the isiXhosa-speaking population in Nelson Mandela Bay (NMB), this transition has led to the dual burden of undernutrition and overnutrition, increasing the prevalence of non-communicable diseases (NCDs) such as obesity and diabetes. Despite the prevalence of this nutrition phenomenon, limited research has explored the perceptions of nutrition transition among South African communities, although there is literature about the transition itself. Most studies on the research subject were undertaken in Asian and European countries and America. Generally, studies regarding the nutrition transition emphasise the importance of early public health interventions to prevent the transition from reaching critical levels. This research study aimed to answer the question: How do isiXhosa-speaking people in NMB perceive nutritional transition, and what are their knowledge and practices concerning traditional foods? This study’s primary aim was to identify and evaluate the NMB isiXhosa-speaking population’s perceptions regarding nutrition transition and their knowledge and practices concerning traditional foods. Subsequently, the study aimed to develop and test an educational intervention to promote traditional African diets and mitigate the adverse effects of nutrition transition. The researcher employed a multi-method approach, encompassing quantitative and qualitative methods and an exploratory, descriptive, and contextual approach to enhance the research design. Ethical principles guided the study, including autonomy, non-maleficence, beneficence, and justice. The study comprised two phases. Participants were selected through a stratified, clustered sampling technique. In the first phase, data were collected through in-depth interviews, focus group discussions (FGDs), a 24-hour dietary recall questionnaire, and a knowledge and practices The participants were isiXhosa-speaking NMB residents older than 18 years of age. The second phase utilised the first-phase findings to develop an intervention programme. The intervention was implemented, and its efficacy was evaluated through post-intervention surveys, sensory evaluation, and a three-month telephonic follow-up. The findings indicated a significant decline in traditional food knowledge (TFK) and practices among the participants, with a marked shift towards Westernised diets. The primary factors driving this transition were urbanisation, economic constraints, and a lack of awareness about the nutritional benefits of traditional foods. The intervention programme, which included educational workshops and a sensory evaluation using indigenous crops, resulted in improved knowledge and practices regarding indigenous crops among the participants. Post-intervention data showed increased dietary diversity and a greater inclusion of traditional foods in daily diets. The study concluded that nutrition transition poses a significant challenge to the health and well-being of isiXhosa-speaking individuals in NMB. However, targeted interventions that promote traditional African diets can effectively address this issue. The study recommends that policymakers and public health practitioners incorporate culturally relevant and community-driven strategies to promote traditional food consumption. Future research should focus on the long-term impacts of such interventions and explore scalable models for broader implementation. , Thesis (PhD) -- Faculty of Health Sciences, School of Behavioural & Lifestyle Sciences, 2024
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  • Date Issued: 2024-12

An assessment of community- based citrus projects for sustainable livelihoods in Raymond Mhlaba Municipality

  • Authors: Ncapayi, Phelisa
  • Date: 2024-12
  • Subjects: Citrus fruit industry -- South Africa -- Eastern Cape , Economic development projects -- South Africa -- Eastern Cape , Poverty -- South Africa -- Eastern Cape
  • Language: English
  • Type: Master's theses , text
  • Identifier: http://hdl.handle.net/10948/70034 , vital:78279
  • Description: This research study assessed community-based citrus projects for sustainable livelihoods in Raymond Mhlaba Municipality. These projects aim to empower people in Raymond Mhlaba by transforming empty land plots into revenue and job-generating activities, alleviating poverty in the area. The study employed a qualitative approach with a case study design. A sample of 22 participants was purposefully selected, comprising 16 beneficiaries engaged in a community citrus project, two project Leaders, two municipal officials, and two ward councillors. Purposive sampling is a non-probability sampling strategy. The participants were from Tyhume River Valley and Kat River Citrus. The study utilised semi-structured interviews and focus group discussions to gain a comprehensive understanding of participants’ opinions concerning the community citrus project. Citrus farming in Raymond Mhlaba Municipality contributes to livelihoods by facilitating access to land, social networks, healthcare, education, employment, income, and decision-making abilities. The findings indicate that community citrus projects can sustain livelihoods; increased productivity leads to employment growth. Municipal officials should encourage local communities to focus on citrus production to alleviate poverty and create job opportunities, accelerating local economic growth. Municipal officials should also urge the government to fund local economic development projects. Further studies should evaluate how community development initiatives support rural communities’ sustainability. , Thesis (MA) -- Faculty of Business and Economic Sciences, School of Economics, Development and Tourism, 2024
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  • Date Issued: 2024-12

Assessing perceptions regarding sustainable growth of taverns in the Gqeberha liquor industry

  • Authors: Coutsourides, Peter Dimitri
  • Date: 2024-12
  • Subjects: Taverns (Inns) -- Port Elizabeth- Eastern Cape -- South Africa , Liquor industry -- Port Elizabeth -- Eastern Cape , Economic development -- Port Elizabeth -- Eastern Cape -- South Africa
  • Language: English
  • Type: Master's theses , text
  • Identifier: http://hdl.handle.net/10948/69542 , vital:77710
  • Description: This study investigates the sustainable growth of taverns within the informal liquor industry in Gqeberha, South Africa. The informal sector is critical for economic development, employing 60% of the world's population and nearly 30% of South Africa's workforce. This study focuses on taverns, a prevalent form of small, medium, and micro-enterprises in South African townships. Despite their economic significance, these taverns face numerous challenges, including limited access to finance, inadequate infrastructure, regulatory hurdles, and competition from larger formal enterprises. The research explores the historical context of the liquor industry in South Africa, highlighting the legacy of racial inequality and the evolution of regulatory frameworks aimed at balancing industry growth and social equity. In addition, the literature covered topics relating to SMMEs and sustainable growth. The study employs a case study strategy and a qualitative methodology where 12 tavern owners in Gqeberha were interviewed using an interview schedule. The thematic data analysis revealed five main challenges that hinder taverns' sustainable growth, namely finance, government interventions and facilities, competition, the COVID-19 Pandemic and crime. In addition, three measures or themes of sustainable growth were identified for these enterprises, such as economic, social and environmental measures for sustainable growth. Finally, based on the findings, a major contribution of this study is the framework of sustainable growth enablers that were presented to SMMEs, including taverns. This study contributes to the understanding of SMMEs in the informal sector and offers practical recommendations for enhancing the sustainable growth of taverns. By addressing the identified challenges and leveraging the proposed enablers, policymakers and stakeholders can create a more supportive environment for these enterprises, ultimately contributing to broader economic development and poverty reduction in South Africa. The insights gained from this study are intended to inform future policies and support mechanisms that can help these enterprises thrive despite their myriad challenges. , Thesis (MCom) -- Faculty of Business and Economic Sciences, School of Management Sciences, 2024
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  • Date Issued: 2024-12

Characterization of the molecular mechanism(s) of cannabinoid-induced paraptosis in breast cancer cells

  • Authors: de la Harpe, Amy
  • Date: 2024-12
  • Subjects: Cannabinoids , Cannabinoids -- Therapeutic use , Cancer cells
  • Language: English
  • Type: Doctoral theses , text
  • Identifier: http://hdl.handle.net/10948/68818 , vital:77120
  • Description: Natural products have been extensively studied for their anticancer potential, and several widely used anticancer drugs have natural origins. Many studies have demonstrated that natural compounds can induce paraptosis in various tumour cell lines. Paraptosis is a caspase-independent cell death mechanism characterised by cytoplasmic vacuolation arising from the endoplasmic reticulum (ER) and the mitochondria. The molecular mechanism of paraptosis is unclear; however, the literature indicates that dysregulation of calcium signalling plays an important role in paraptosis induction, particularly calcium-mediated signalling between the ER and mitochondria. This study aimed to identify and characterise the mechanism of cell death induced by a phytocannabinoid ratio which induced significant cytoplasmic vacuolation in the MCF7 breast cancer cell line. Several techniques were employed to address the aim of the study. The crystal violet assay was used to detect changes in viability. Several pathway inhibitors, as well as fluorescent staining and analysis using high-content screening (HCS), were used to measure the induction of various cell death mechanisms. Morphological changes were investigated using light and transmission electron microscopy. The phytocannabinoid ratio induced significant cell death and cytoplasmic vacuolation in MCF7 cells; however, the same trend was not observed in the MCF10A non-tumourigenic breast cell line. No cell cycle arrest, apoptosis, necrosis, autophagy, or ferroptosis induction was detected in MCF7 cells, suggesting that an alternative mechanism of cell death was induced. Vacuolation and cell death induced by the phytocannabinoid ratio were inhibited by cycloheximide, suggesting a dependence on protein synthesis, which is characteristic of paraptosis induction. The mechanism of paraptosis induction by the phytocannabinoid ratio was investigated, and it was found that treatment 1) induced ER dilation and mitochondrial swelling; 2) induced significant ER stress, mitochondrial calcium overload, and mitochondrial dysfunction which appeared to be mediated by the voltage-dependent anion channel (VDAC); and 3) significantly impaired all mitochondrial metabolic pathways. Overall, the data demonstrated that paraptosis induced by the cannabinoid ratio is mediated by calcium flux from the ER to the mitochondria. This highlighted a novel mechanism of phytocannabinoid-induced cell death and emphasised the anti-cancer potential of the use of phytocannabinoid ratios as opposed to individual phytocannabinoids, expanding their potential for use as anticancer agents. , Thesis (PhD) -- Faculty of Science, School of Biomolecular & Chemical Sciences, 2024
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  • Date Issued: 2024-12

Collaborative conservation governance in multifunctional landscapes: a contextual analysis of two South African biosphere reserves in the Boland

  • Authors: Klaver, Michael
  • Date: 2024-12
  • Subjects: Unesco -- Programme on Man and the Biosphere , Nature conservation -- South Africa , Biosphere
  • Language: English
  • Type: Master's theses , text
  • Identifier: http://hdl.handle.net/10948/68924 , vital:77164
  • Description: The Man and the Biosphere Programme (MAB) has been earmarked as one of the most promising ways of tackling the grand challenges of our time and achieving the Sustainable Development Goals. Furthermore, it may have the potential to make positive contributions to one of the most troubling conservation challenges of our time – winning spaces for large carnivores in human-dominated landscapes. This study aims to assess the interpretation and implementation of MAB in two South African Biosphere Reserves (BRs) and explore how BRs as landscape level collaborative initiatives can support Cape leopard conservation in the Boland region of the Western Cape, South Africa. This study is informed by two objectives. First, to understand how the chosen governance strategy and structure of two South African BRs have helped to achieve a context appropriate interpretation and actioning of MAB in the landscape. Second, to understand how landscape-level collaborative conservation initiatives support leopard conservation across a multifunctional landscape. This study takes on a mixed methods approach in which qualitative data takes priority and quantitative data is used for support in an embedded multiple-case study design. The sampling techniques used include purposive sampling of strategically targeted participants, i.e. those governing BRs and those leading the collaborative initiative and snowballing thereon. Data collection included a combination of semi-structure interviews (n=20) (the principal collection method), a review of archival, policy and other documents (n=15), and supported by a mixed methods survey questionnaire (n=5). Data were analysed through thematic and content analysis. Findings suggest that organisations working at a landscape-level utilise forms of adaptive co-management and/or governance as a means to being both adaptive and collaborative. Important themes which emerge include cross-sectoral approaches, networks, leadership and trust for building partnerships, shared visions and ‘filling gaps’ left by, or collaborating with the state to fulfil mutually beneficial objectives. This research provides empirical studies on MAB, important for sharing knowledge across the World Network of BRs, meeting the need for further research on collaborative initiatives in social-ecological systems and conservation programmes for large free-roaming carnivores in multifunctional landscapes. , Thesis (MSc) -- Faculty of Science, School of Natural Resource Science & Management, 2024
  • Full Text:
  • Date Issued: 2024-12

Collaborative conservation governance in multifunctional landscapes: a contextual analysis of two South African Biosphere Reserves in the Boland

  • Authors: Klaver, Michael
  • Date: 2024-12
  • Subjects: Unesco. -- Programme on Man and the Biosphere , Nature conservation -- South Africa , Social ecology
  • Language: English
  • Type: Master's theses , text
  • Identifier: http://hdl.handle.net/10948/68918 , vital:77165
  • Description: The Man and the Biosphere Programme (MAB) has been earmarked as one of the most promising ways of tackling the grand challenges of our time and achieving the Sustainable Development Goals. Furthermore, it may have the potential to make positive contributions to one of the most troubling conservation challenges of our time – winning spaces for large carnivores in human-dominated landscapes. This study aims to assess the interpretation and implementation of MAB in two South African Biosphere Reserves (BRs) and explore how BRs as landscape level collaborative initiatives can support Cape leopard conservation in the Boland region of the Western Cape, South Africa. This study is informed by two objectives. First, to understand how the chosen governance strategy and structure of two South African BRs have helped to achieve a context appropriate interpretation and actioning of MAB in the landscape. Second, to understand how landscape-level collaborative conservation initiatives support leopard conservation across a multifunctional landscape. This study takes on a mixed methods approach in which qualitative data takes priority and quantitative data is used for support in an embedded multiple-case study design. The sampling techniques used include purposive sampling of strategically targeted participants, i.e. those governing BRs and those leading the collaborative initiative and snowballing thereon. Data collection included a combination of semi-structure interviews (n=20) (the principal collection method), a review of archival, policy and other documents (n=15), and supported by a mixed methods survey questionnaire (n=5). Data were analysed through thematic and content analysis. Findings suggest that organisations working at a landscape-level utilise forms of adaptive co-management and/or governance as a means to being both adaptive and collaborative. Important themes which emerge include cross-sectoral approaches, networks, leadership and trust for building partnerships, shared visions and ‘filling gaps’ left by, or collaborating with the state to fulfil mutually beneficial objectives. This research provides empirical studies on MAB, important for sharing knowledge across the World Network of BRs, meeting the need for further research on collaborative initiatives in social-ecological systems and conservation programmes for large free-roaming carnivores in multifunctional landscapes. , Thesis (MSc) -- Faculty of Science, School of Environmental Sciences, 2024
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  • Date Issued: 2024-12

Experiences of accoucheurs caring for women during confinement in public maternity units in the O.R. Tambo District Municipality

  • Authors: Wabane, Malibongwe
  • Date: 2024-12
  • Subjects: Midwifery -- South Africa -- Eastern Cape , Labor (Obstetrics) -- South Africa -- Eastern Cape , Hospital care -- South Africa -- Eastern Cape
  • Language: English
  • Type: Master's theses , text
  • Identifier: http://hdl.handle.net/10948/69782 , vital:78034
  • Description: Midwifery is a health science profession that deals with women in their confinement period, including the caring of new-borns. Historically, the midwifery profession has evolved from being a female-dominated profession to an occupation followed by both males and females. However, accoucheurs working in public maternity units face various challenges, such as a lack of support and discrimination from their female counterparts and women during confinement. These challenges are based mainly on tradition, religion, and the history of midwifery, a female-dominant profession. The potential effects of these challenges can be seen when women during confinement refuse maternal care from accoucheurs. As a result of this prejudice, accoucheurs may be unable to practice their midwifery skills and may choose other disciplines involving less intimate care. Such acts of refusal of care by women during confinement and these various challenges faced by accoucheurs in public maternity units are common in rural areas. The O.R. Tambo District Municipality (ORTDM) comprises predominantly of rural areas where culture and tradition play an essential role in the community’s life. This study employed a qualitative research design with an explorative, descriptive, and contextual approach to gain a deeper understanding of the experiences of accoucheurs caring for women during confinement in public maternity units in the ORTDM. The purpose of this study was to explore and describe the experiences of accoucheurs caring for women during confinement in public maternity units in the ORTDM to make recommendations to nursing managers regarding the provision of optimal support to accoucheurs working in the rural Eastern Cape. The target population of the study was all accoucheurs working in public maternity units in the ORTDM. Snowball sampling, a non-probability sampling method, was used to select participants who met the inclusion criteria and were voluntarily willing to participate in the study. The data collection method used was one-on-one semistructured interviews, which were also captured using a digital voice recorder. Field notes were used during data collection to enhance the researcher’s understanding of accoucheurs’ nonverbal experiences. The sample size, which was 12 accoucheurs, was determined by data saturation. Data was transcribed verbatim, and Braun and Clark’s (2006) steps of reflexive thematic analysis (RTA) were used as a framework for data analysis. Lincoln and Guba’s model of trustworthiness was used to maintain the quality of the study by employing credibility, transferability, confirmability, and dependability (Lincoln and Guba, 1985). The ethical principles that guided this study with human participants were the principles of respect for persons, beneficence, non-maleficence, and justice as outlined in the Belmont Report and its application (2015:14) Three main themes emerged from the data analysis, namely: • Theme 1: Accoucheurs experienced specific factors that enabled them to care for women during confinement in public maternity units. • Theme 2: Accoucheurs identified barriers that disabled them in caring for women during confinement in public maternity units. • Theme 3: Recommendations for nurse managers by accoucheurs to optimize their ability to care for women during confinement in public maternity units. Direct quotations from the raw data and relevant literature supported the research study results and were discussed in-depth in Chapter Four. Various recommendations were discussed in Chapter Five of this study that present options for nurse managers to optimize the support for accoucheurs who were caring for women during confinement in public maternity units.Midwifery is a health science profession that deals with women in their confinement period, including the caring of new-borns. Historically, the midwifery profession has evolved from being a female-dominated profession to an occupation followed by both males and females. However, accoucheurs working in public maternity units face various challenges, such as a lack of support and discrimination from their female counterparts and women during confinement. These challenges are based mainly on tradition, religion, and the history of midwifery, a female-dominant profession. The potential effects of these challenges can be seen when women during confinement refuse maternal care from accoucheurs. As a result of this prejudice, accoucheurs may be unable to practice their midwifery skills and may choose other disciplines involving less intimate care. Such acts of refusal of care by women during confinement and these various challenges faced by accoucheurs in public maternity units are common in rural areas. The O.R. Tambo District Municipality (ORTDM) comprises predominantly of rural areas where culture and tradition play an essential role in the community’s life. This study employed a qualitative research design with an explorative, descriptive, and contextual approach to gain a deeper understanding of the experiences of accoucheurs caring for women during confinement in public maternity units in the ORTDM. The purpose of this study was to explore and describe the experiences of accoucheurs caring for women during confinement in public maternity units in the ORTDM to make recommendations to nursing managers regarding the provision of optimal support to accoucheurs working in the rural Eastern Cape. The target population of the study was all accoucheurs working in public maternity units in the ORTDM. Snowball sampling, a non-probability sampling method, was used to select participants who met the inclusion criteria and were voluntarily willing to participate in the study. The data collection method used was one-on-one semistructured interviews, which were also captured using a digital voice recorder. Field notes were used during data collection to enhance the researcher’s understanding of accoucheurs’ nonverbal experiences. The sample size, which was 12 accoucheurs, was determined by data saturation. Data was transcribed verbatim, and Braun and Clark’s (2006) steps of reflexive thematic analysis (RTA) were used as a framework for data analysis. Lincoln and Guba’s model of trustworthiness was used to maintain the quality of the study by employing credibility, transferability, confirmability, and dependability (Lincoln and Guba, 1985). The ethical principles that guided this study with human participants were the principles of respect for persons, beneficence, non-maleficence, and justice as outlined in the Belmont Report and its application (2015:14) Three main themes emerged from the data analysis, namely: • Theme 1: Accoucheurs experienced specific factors that enabled them to care for women during confinement in public maternity units. • Theme 2: Accoucheurs identified barriers that disabled them in caring for women during confinement in public maternity units. • Theme 3: Recommendations for nurse managers by accoucheurs to optimize their ability to care for women during confinement in public maternity units. Direct quotations from the raw data and relevant literature supported the research study results and were discussed in-depth in Chapter Four. Various recommendations were discussed in Chapter Five of this study that present options for nurse managers to optimize the support for accoucheurs who were caring for women during confinement in public maternity units. , Thesis (MCur) -- Faculty of Health Sciences, School of Clinical Care & Medicinal Sciences, 2024
  • Full Text:
  • Date Issued: 2024-12
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